Draining for Profit: And Draining for HealthOrange Judd Company, 1890 - 252 páginas |
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Página 30
... influence of drought , —and " place it in a box or barrel , open at the bottom , and fre- 66 quently during the season let him saturate it with water . " He will find it gradually becoming more and more porous " and friable , -holding ...
... influence of drought , —and " place it in a box or barrel , open at the bottom , and fre- 66 quently during the season let him saturate it with water . " He will find it gradually becoming more and more porous " and friable , -holding ...
Página 35
... influence of a cold soil . Temperature . The temperature of the soil has great effect on the germination of seeds , the growth of plants , and the ripening of crops . 66 Gisborne says : " The evaporation of 1 lb. of water " lowers the ...
... influence of a cold soil . Temperature . The temperature of the soil has great effect on the germination of seeds , the growth of plants , and the ripening of crops . 66 Gisborne says : " The evaporation of 1 lb. of water " lowers the ...
Página 39
... them more friable . " C The source of this underground moisture is the water table , " the level of the soil below the influence of the drains , -- and this should be so placed that HOW DRAINS ACT , AND AFFECT THE SOIL . 39.
... them more friable . " C The source of this underground moisture is the water table , " the level of the soil below the influence of the drains , -- and this should be so placed that HOW DRAINS ACT , AND AFFECT THE SOIL . 39.
Página 44
... influence on the soil , and on the plants growing in it . Again , manures are more or less effective , in proportion as they are more or less thoroughly mixed with the soil In an undrained , retentive soil , it is not often possible to ...
... influence on the soil , and on the plants growing in it . Again , manures are more or less effective , in proportion as they are more or less thoroughly mixed with the soil In an undrained , retentive soil , it is not often possible to ...
Página 63
... influence , often to a damaging extent , their general consideration of the mod- ern practice of tile draining . These processes are all of occasional use , even at this day , but they are based on no fixed rules , and are so much a ...
... influence , often to a damaging extent , their general consideration of the mod- ern practice of tile draining . These processes are all of occasional use , even at this day , but they are based on no fixed rules , and are so much a ...
Otras ediciones - Ver todas
Draining for Profit, and Draining for Health George E 1833-1898 Waring Sin vista previa disponible - 2015 |
Términos y frases comunes
acre agricultural allow basin bottom brick bushels carried cause cents clay collars commenced condition connection considerable contour lines cost course covered crop cultivation deposit depth discharge diseases distance ditch drainage dyke earth effect Ensilage evaporation fall Farm farmer feet deep fever field fifth column filled flow foot four feet Gisborne grade ground Hackensack River heat heavy rain houses improvement inches joints kiln labor laid land lateral drains laying length less lower main drain malarious manure marsh matters moisture muddy water nearly necessary obstruction operation outlet particles pipes placed plants plow porous practice prevent quantity rain-fall removed result retentive roots salt marsh saturated season sewage sewers shown in Fig side silt silt-basin slope soakage soil spring stakes steepest descent stone subsoil sufficient surface tide tile tile-draining tion typhoid fever undrained upper end whole width